CODEWITHSUNDEEP
jqueryruby-on-railsjson
timpone
timpone

Reputation: 19939

posting a javascript array as a an array of JSON objects

I am posting to a rails controller an array of json objects via a jQuery ajax request. Do I need to use JSON.stringify or should jQuery handle it for me?

  var vals = [{"name":"item name #1"},{"name":"item name #2"}];
  $.ajax({
    url: '/arc/api/v1/calculate_items',
    type: 'POST',
    data: {line_items: vals},
    dataType: 'json'
  }).done(function(r){

vs

  var vals = [{"name":"item name #1"},{"name":"item name #2"}];
  $.ajax({
    url: '/arc/api/v1/calculate_items',
    type: 'POST',
    data: {line_items: JSON.stringify(vals)},
    dataType: 'json'
  }).done(function(r){

Upvotes: 1

Views: 59

Answers (1)

Roman Kiselenko
Roman Kiselenko

Reputation: 44360

Do I need to use JSON.stringify?

You need to use JSON.stringify to first serialize your object(or an array of objects) to JSON, and then specify the content-type so your server understands it's JSON.

jQuery handle it for me?

No, it is not.

There are two jQuery method which does it automaticly, getJSON, post 

$.getJSON("/some/url", function(data) { 
   // the data is already a plain JSON object
})


var data = /* Your data in JSON format - see below */;
$.post("/some/url", data, function(returnedData) {
  // the returnedData is already a plain JSON object    
})

Upvotes: 1

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